import Vue from 'vue'
import VueRouter from 'vue-router'
import {
  Dialog
} from 'vant';
import store from '@/store/';

Vue.use(VueRouter)

//路由表
const routes = [{
    path: '/login',
    name: 'login',
    component: () => import('@/views/login'),
    meta: {
      requiresAuth: false
    } //添加额外的自定义数据
  }, {
    path: '/',
    component: () => import('@/views/layout'),
    children: [{
      path: '', //默认子路由
      name: 'home',
      component: () => import('@/views/home'),
      meta: {
        requiresAuth: false
      }
    }, {
      path: '/qa',
      name: 'qa',
      component: () => import('@/views/qa'),
      meta: {
        requiresAuth: false
      }
    }, {
      path: '/video',
      name: 'video',
      component: () => import('@/views/video'),
      meta: {
        requiresAuth: false
      }
    }, {
      path: '/my',
      name: 'my',
      component: () => import('@/views/my'),
      meta: {
        requiresAuth: false
      }
    }]
  },
  {
    path: '/search',
    name: 'search',
    component: () => import('@/views/search'),
    meta: {
      requiresAuth: false
    }
  },
  {
    path: '/article/:articleId',
    name: 'article',
    component: () => import('@/views/article'),
    //将动态路由参数映射到组件的props中，无论是访问还是维护性都很方便
    props: true,
    meta: {
      requiresAuth: false
    }
  },
  {
    path: '/user/profile',
    name: 'user-profile',
    component: () => import('@/views/user-profile'),
    meta: {
      requiresAuth: false
    }
  },
  {
    path: '/user/chat',
    name: 'user-chat',
    component: () => import('@/views/user-chat'),
    meta: {
      requiresAuth: true
    }
  }
]

const router = new VueRouter({
  routes
})

router.beforeEach((to, from, next) => {
  if (to.meta.requiresAuth) {
    //判断页面是否需要登录才能访问
    //已登录，则直接通过
    if (store.state.user) {
      return next()
    }
    //没有登陆，提示是否登录
    Dialog.confirm({
      title: '访问提示',
      message: '该功能需要登录才能访问，确认登陆吗',
    }).then((res) => {
      //确认了，跳转登录
      router.replace({
        name: 'login',
        query: {
          redirect: router.currentRoute.fullPath
        }
      })
    }).catch((err) => {
      //取消了，中断路由导航
      next(false)
    });
  } else {
    //不需要登陆状态的页面，直接过去
    next()
  }
})

export default router